Pipe-wrench.



B. JAGIELSKI.

vPIPE WRENCH. APPLICATION FILED IIIII.30. |911.

LQMMWI Patents@ Apr. 23, 1918.

INVENTOR vWITNESS j@ MM i, 'y y WW MM@ ATTORNEY Vminivnr. anornnsnr, or sr. croma, :Minn-asoma.

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Specification of Letters Patent. i ,Patratd Apk'. 23, QL.

Application led January 30, 1917. Serial No. 145,483.

To all whom t may concern Be it known that l, BARNEY JAGIELSKI, a 4

citizen of the United States, residing at St. Cloud, in the coinity of Stearns and State oit Minnesota, have invented new and use t'ul improvements inPipeWrenches, of which the following is a specification.

This invention relates to improvements in pipe wrenches, and has for its object to simplify and improve the existingart by producing a wrench of this character constructed of fewparts Vwhich may be cheaply operated and which may be easily and quickly manipulated.

With the above and other objects in view the improvement resides in the construction, combination and arrangement of parts set torth in the following` speciication and :talling within the scope of the appended claims.

ln the drawing:

Figure 1 is a side elevation of a wrench constructed in accordance with the present invention, illustrating by the dotted lines the arrangement of parts when one of the jaws is to be adjusted with respect-to the 'other aw,

Fig. 2 is a sectional view approximately on the line 2-2 or" llig. l, and

lFig. 3 is a sectional view approximately on the line 3-3 of Fig. 1.

The numeral 1 designates the outer or stationary jaw oitthev wrench, the same having its inner engaging face provided with transversely disposed teeth 2, and the said jaw being` formed with an angular extension providing the shank 3.

The numeral 4L designates a nut, the same being provided with a pair of spaced extending Y cars 5--5 which are adapted to straddle the end of the shank 3' and to be pivotally connected thereto, as at 6. The movable jaw is indicated by the numeral 7 and includes a flat member having its outer or engaging face of an arcuate formation as indicated by the numeral 8, and the ends of the said jaw 7 are centrally slotted, as indicated by thev numerals 9-79, one of the said slotted ends adapted to` engage with the opposite sides of the shank 3 when the device is in operative position, as illustrated by the full lines in'Fig. 1. Formed with the jaw 7 and extending centrally from the inner or rounded face thereof is a shank 7 which is preferably rounded in cross section and which is provided with threads 11 that engage with the threads in the bolt 4, while the end of the shank 10 is integrally 'formed with a handle member 12 that is preferably hat and rectangular in cross section.

To adjust the jaws 7 with relation to the jaw 1, the handle 12 is grasped by one hand of the operator, the shank of the j aw 1 being grasped by the other hand, and the handle is swung with the nut 4l on the pivot G and turned or screwed upon the nut to bring the jaw 7 either toward or away from the jaw 1.V One of the slotted ends 9 of the jaw 7 is arranged to receive the inner edge and opposite sides of the shank 3 when the handle 12 is swung upon the tulcruni pin i to bring the jaw 7 in the direction of the said shank 3, and the operation as well as the simplicity ofthepconstruction, will, it is thought, be apparent. The j aw 7 is illustrated as of less width than the length of the jaw l, but the said 'aw 7 ma r be larUer than shown. In

y operation, however, the arched surface 8 of the Jaw 7 1s at all tlmes arranged directly inward, and as in theposition illustrated in Fig. 1 of the drawings, directly below the Jaw 2.

Having thus described the invention, what l claim is:

1. ln a wrench, the combination with a stationary aw and a movable jaw which has its shank pivoted and longitudinally adjusty able with respect to the stationary jaw, said movable Jaw haying an arched head and having its opposite edges notched and said lnotches designed to engage with the shank or' the stationary jaw, when the said notched ends of the movable jaw are 4brought oppotionary jaw having at one of itsends a right angular cross sectional rectangular shank, the movable jaW'having a shank arranged to one side ofthe shank of the stationary 5 jaw and revolubly and longitudinally adjustable with respect to the stationary jaw, said movable jaw having a widened head,

the active surface of which being arched and the ends of the said head being notched whereby to receive in one of the notches the 1J shank of the stationary jaw.

ln testimony whereof I aliix my signature.

BARNEY JAGIELSKI.

Comes of this patent may be obtained for ve cents each, by addressing the "Commissioner ot Iatents,

Washington, C. 

